The historical life experiences, typically from childhood, that predisposed the individual to develop their specific psychological mechanisms. 2. Formulate the "Mechanism Hypothesis"
The underlying causes that maintain the problems, such as core beliefs (schemas), cognitive distortions, or maladaptive behaviors.
While a diagnosis (like Major Depressive Disorder) is a general starting point, the formulation explains the unique relationship between a patient's symptoms. For example, a patient’s "avoidance behavior" might be the mechanism linking both their social anxiety and their depression. The Case Formulation Approach to Cognitive-Beha...
The , championed by Jacqueline Persons and building on the work of Aaron T. Beck, is an idiographic (individualized) framework that allows therapists to apply evidence-based treatments to real-world clinical complexity. Unlike "manualized" therapy that follows a set protocol for a specific diagnosis, this approach uses a personalized hypothesis to understand the psychological mechanisms driving all of a patient's symptoms. 1. Identify the Core Components
The "heart" of this approach is the mechanism hypothesis—a specific theory about why this particular patient is struggling. While a diagnosis (like Major Depressive Disorder) is
The therapist and patient work as "co-scientists" to develop this hypothesis.
Recent events or triggers that activated the psychological mechanisms and led to the current episode of distress. The historical life experiences
A complete case formulation acts as a "map" that ties a patient's history to their current symptoms through four primary elements: